Day3b 164b

[JoepdeJong]

No description provided.

[xem]

I fixed your day 3 part 2 (and other stuff) in my last commit, your solution was outputting an array instead of a number

[JoepdeJong]

👍
I had some ideas for 3b. Maybe we can use something like .slice(k * 2, (k + 1) * 2) to loop over parts of i, instead of keeping track of an array in the reducer.

[xem]

yeah, could be nice. on my side I'm looking for a regex or other approach that can find a character that is present exactly thrice in a string (the concatenation of 3 lines of each group).

[xem]

I think I have something, but a bit long:

"aaacbebcddcdddeeeae".split``.sort().join``.replace(/(.)\1\1\1+/g,"").match(/(.)\1\1/)[1] // returns "c"